It works!
The reason that I did it the other way is because I didn't know if all alc203 users want that pin used that way, and since I hadn't seen any issues, I figured that it be better to make it something that I could turn on just for my device.
On Tue, Aug 5, 2008 at 5:05 AM, Takashi Iwai tiwai@suse.de wrote:
At Mon, 4 Aug 2008 11:46:28 -0500, george pee wrote:
I have a wireless tablet (webdt310) http://dtresearch.com/product/wt310/index.htm
It has cs5536 audio and a realtek alc203 codec.
The headphone jack works perfectly, but the internal speaker was not.
After a bit a twiddling and reading the ALC203 data sheet, I finally
figured
out that the function of Pin 37 had to be changed to MONO-OUT to get
sound
out of the internal speaker.
I'm not sure that this is the best approach (maybe there could be some
pin
sensing?) but I added this as an ac97 quirk. Here's the patch.
I prefer this kind of change with ac97->patch(). How about the patch below (untested)?
thanks,
Takashi
diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c index f6a7d72..171559c 100644 --- a/sound/pci/ac97/ac97_codec.c +++ b/sound/pci/ac97/ac97_codec.c @@ -122,7 +122,7 @@ static const struct ac97_codec_id snd_ac97_codec_ids[] = { { 0x414c4740, 0xfffffff0, "ALC202", NULL, NULL }, { 0x414c4750, 0xfffffff0, "ALC250", NULL, NULL }, { 0x414c4760, 0xfffffff0, "ALC655", patch_alc655, NULL }, -{ 0x414c4770, 0xfffffff0, "ALC203", NULL, NULL }, +{ 0x414c4770, 0xfffffff0, "ALC203", patch_alc203, NULL }, { 0x414c4781, 0xffffffff, "ALC658D", NULL, NULL }, /* already patched */ { 0x414c4780, 0xfffffff0, "ALC658", patch_alc655, NULL }, { 0x414c4790, 0xfffffff0, "ALC850", patch_alc850, NULL }, diff --git a/sound/pci/ac97/ac97_patch.c b/sound/pci/ac97/ac97_patch.c index f4fbc79..bb028f8 100644 --- a/sound/pci/ac97/ac97_patch.c +++ b/sound/pci/ac97/ac97_patch.c @@ -2560,6 +2560,14 @@ static int patch_ad1986(struct snd_ac97 * ac97) return 0; }
+/*
- realtek ALC203: use mono-out for pin 37
- */
+static int patch_alc203(struct snd_ac97 *ac97) +{
snd_ac97_update_bits(ac97, 0x7a, 0x400, 0x400);return 0;+}
/*
- realtek ALC65x/850 codecs